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2017吉林省蛟河市高考英语阅读理解暑假训练（5）及答案 阅读下列短文，从每篇短文后所给各题的四个选项（A、B、C和D）中，选出最佳选项。 【浙江省2017高考英语模拟冲刺卷】 Below is a selection from a science report. Even facts “forgotten” by people during a busy day may be got back again if this is followed by a good night's sleep. Researchers from the University of Chicago asked volunteers to remember simple words. Many found their memories letting them down towards the end of the day, but the following morning, those who had slept well could remember much more. Researchers, writing in the journal Nature, said the brain could “rescue” lost memories during the night. When the brain is first asked to remember something, that memory is laid down in an “unstable” state, which means it is possible that it could be lost. At some point, the brain consolidates (强化) those which are thought important into a “stable”, more permanent state. However, the Chicago researchers suggested that it was possible for a “stable” memory to be made “unstable” again. This would mean that memories could be slightly changed and then be kept in a new order again in the face of new experiences. The 12 volunteers who were tested in the experiment were asked to listen to words created through a speech synthesizer (语音合成器) which were purposely difficult to understand. | 
